服务器: 消息 170,级别 15,状态 1,行 1
第 1 行: '1' 附近有语法错误。SELECT top 30*(1-1) p_id FROM paper_control WHERE p_isuse=1 AND ks_isexercise=1 ORDER BY p_addtime DESC
第 1 行: '1' 附近有语法错误。SELECT top 30*(1-1) p_id FROM paper_control WHERE p_isuse=1 AND ks_isexercise=1 ORDER BY p_addtime DESC
在TOP后面使用变量
(爱新觉罗.毓华(十八年风雨,守得冰山雪莲花开) 2008-01-02 广东深圳)
*/--SQL SERVER 2005 的写法
use adventureworks
goDECLARE @Percentage int
SET @Percentage = 1
SELECT TOP (@Percentage) PERCENT
Name
FROM Production.Product
ORDER BY Name/*
Name
----------------------
Adjustable Race
All-Purpose Bike Stand
AWC Logo Cap
BB Ball Bearing
Bearing Ball
Bike Wash - Dissolver(6 行受影响)
*/-----------------------------------
--SQL SERVER 2000 的写法
create table a([id] [int])
insert into a(id) values(1)
insert into a(id) values(2)
insert into a(id) values(3)
insert into a(id) values(4)
insert into a(id) values(5)declare @num as int
declare @sql as varchar(2000)
set @num = 2
set @sql = 'select top ' + cast(@num as char) + ' * from a'
exec(@sql)drop table a
/*
id
-----------
1
2
*/
top 30*(1-1)
出错了TOP后面是能有计算的……
SELECT top(30*(1-1)) p_id FROM paper_control WHERE p_isuse=1 AND ks_isexercise=1 ORDER BY p_addtime DESC
top 30*(1-1)?
没见过